Information transmission method, video playing device and video display device

A video playback device, video display technology, applied in the direction of image communication, selective content distribution, electrical components, etc.

Inactive Publication Date: 2016-11-16
LETV HLDG BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the problem in the related art that the video data in the video playback device does not necessarily adapt to the display parameters of the EDID, resulting in that the

Method used

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  • Information transmission method, video playing device and video display device
  • Information transmission method, video playing device and video display device
  • Information transmission method, video playing device and video display device

Examples

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Embodiment Construction

[0102] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0103] figure 2 It is a schematic diagram of an application scenario provided by an embodiment of the present invention. The figure includes a video playback device and a video display device, wherein the video display device first sends its own extended display identification data EDID to the video playback device through HDMI, so that the video playback device can judge the display parameter...

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PUM

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Abstract

The present invention relates to an information transmission method, a video playing device and a video display device. The information transmission method includes: sending an information read instruction to a video display device; acquiring EDID according to a preset acquisition rule, and extracting display parameters from the EDID; judging whether the display parameters successfully match playing parameters of a video playing device; transmitting video data matching the EDID to the video display device if the display parameters successfully match the playing parameters; and reacquiring the EDID according to the preset acquisition rule if the display parameters unsuccessfully match the playing parameters, wherein versions of the EDID acquired by the video playing device each time are different. The information transmission method, video playing device and video display device in the technical solution provided in the present invention enable the video playing device to read EDID matching playing capabilities thereof, so that video data can be successfully transmitted to the video display device.

Description

technical field [0001] The invention relates to the technical field of video transmission control, in particular to an information transmission method, a video playback device and a video display device. Background technique [0002] EDID (Extended Display Identification DATA, Extended Display Identification Data), as a data specification of a video display device (such as a monitor), includes display parameters that can reflect the display capabilities of the video display device. The display parameters include parameter information such as the version number of the EDID itself, the resolution of the video display device, the display timing, and the display size. Since the EDID contains the above display parameters of the video display device, when the video playback device (such as a DVD player) establishes a connection with the video display device, the video playback device can determine whether its own playback capability is compatible with the video display device by o...

Claims

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Application Information

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IPC IPC(8): H04N21/462H04N21/4627H04N21/472
CPCH04N21/462H04N21/4622H04N21/4627H04N21/47205
Inventor 孟伟平
Owner LETV HLDG BEIJING CO LTD
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